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Finding the Fourth Proportional to 402,192.59, 603,288.69 and 102,673.07

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Solution

The fourth proportional to 402,192.59, 603,288.69 and 102,673.07 is: 154,009.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,192.59 : 603,288.69 = 102,673.07 : x
  2. Step 2: Convert to fraction form
    402,192.59/603,288.69 = 102,673.07/x
  3. Step 3: Cross multiply
    402,192.59x = 603,288.69 × 102,673.07
  4. Step 4: Simplify right side
    402,192.59x = 61,941,501,898.58
  5. Step 5: Solve for x
    x = 61,941,501,898.58/402,192.59
  6. Step 6: Final answer
    x = 154,009.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.